staging: wlan-ng: remove "autogenerated code" comments

p80211metadef.h and p80211metastruct.h both have comments stating they
are autogenerated and should not be edited. However, neither is
generated during build and both have had numerous manual edits since
the driver has been in staging.
Signed-off-by: Tim Collier <osdevtc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211metadef.h

 /* SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) */
-/* This file is GENERATED AUTOMATICALLY.  DO NOT EDIT OR MODIFY.
- * --------------------------------------------------------------------
+/* --------------------------------------------------------------------
  *
  * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
  * --------------------------------------------------------------------

drivers/staging/wlan-ng/p80211metastruct.h

 /* SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) */
-/* This file is GENERATED AUTOMATICALLY.  DO NOT EDIT OR MODIFY.
- * --------------------------------------------------------------------
+/* --------------------------------------------------------------------
  *
  * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
  * --------------------------------------------------------------------